Color filter and solid state imaging device having a colored pattern formed from a curable composition

Abstract

A color filter or solid state imaging device comprising a colored pattern formed from a curable composition which includes (A) a pigment, (B) a compound having a defined cyclic urea structure and having an acid group or a basic group, (C) a dispersant, (D) a solvent, (E) a radical polymerizable compound, and (F) a photopolymerization initiator. The pigment may be a pigment having a urea structure or an imide structure. The pigment may also be a pigment having a barbituric skeleton.

1. A color filter comprising a colored pattern formed from a curable composition comprising (A) a pigment, (B) a compound having a cyclic urea structure and having an acid group or a basic group, (C) a dispersant, (D) a solvent, (E) a radical polymerizable compound, and (F) a photopolymerization initiator,
 wherein the (B) compound having a cyclic urea structure and having an acid group or a basic group is represented by the following formula (l): 
 
       
         
           
           
               
               
           
         
         wherein R 1  and R 2  each represent a hydrogen atom: and A represents a divalent linking group that links two nitrogen atoms included in the ring structure wherein A has an acid group or a basic group. 
       
     
     
       2. The color filter according to  claim 1 , wherein the (A) pigment is (A-2) a pigment having a urea structure or an imide structure. 
     
     
       3. The color filter according to  claim 1 , wherein the (A) pigment is (A-3) a pigment having a barbituric skeleton. 
     
     
       4. The color filter according to  claim 1 , wherein the acid group or the basic group is a phenol group, a carboxyl group, a sulfonic acid group, a phosphoric acid group, a sulfinic acid group, a monosulfate ester group or an amino group. 
     
     
       5. The color filter according to  claim 1 , wherein the (A) pigment is selected from the group consisting of Pigment Green 36, Pigment Yellow 139, Pigment Yellow 150 and Pigment Yellow 185. 
     
     
       6. The color filter according to  claim 1 , wherein (B) is a compound having a cyclic urea structure and having an acid group. 
     
     
       7. The color filter according to  claim 6 , wherein the acid group is selected from the group consisting of a carboxyl group, a sulfonic acid group and salts thereof. 
     
     
       8. The color filter according to  claim 1 , wherein the (B) compound having a cyclic urea structure and having an acid group or a basic group is represented by the following formula (III): 
       
         
           
           
               
               
           
         
       
       wherein R 1  and R 2  each represent a hydrogen atom; and R 4  and R 5  each represent a hydrogen atom, or an alkyl group, an aryl group, an alkenyl group or an alkynyl group, wherein each of R 4  and R 5  may further have a substituent selected from the group consisting of an alkyl group, an aryl group, an alkenyl group, an alkynyl group, a cyclic alkyl group, a cyclic alkenyl group, a cyclic alkynyl group, a hydroxyl group, a thiol group, an ether group, a thioether group, a sulfo group, a sulfonamide group, a carbonyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a thiocarbonyl group, a urea group, a urethane group, an amide group, and a heterocyclic group, wherein R 4  or R 5  contains an acid group or a basic group. 
     
     
       9. A solid state imaging device comprising a colored pattern formed from a curable composition comprising (A) a pigment, (B) a compound having a cyclic urea structure and having an acid group or a basic group, (C) a dispersant, (D) a solvent, (E) a radical polymerizable compound, and (F) a photopolymerization initiator,
 wherein the (B) compound having a cyclic urea structure and having an acid group or a basic group is represented by the following formula (I): 
 
       
         
           
           
               
               
           
         
         wherein R 1  and R 2  each represent a hydrogen atom: and A represents a divalent linking group that links two nitrogen atoms included in the ring structure wherein A has an acid group or a basic group. 
       
     
     
       10. The solid state imaging device according to  claim 9 , wherein the (A) pigment is (A-2) a pigment having a urea structure or an imide structure. 
     
     
       11. The solid state imaging device according to  claim 9 , wherein the (A) pigment is (A-3) a pigment having a barbituric skeleton. 
     
     
       12. The solid state imaging device according to  claim 9 , wherein the acid group or the basic group is a phenol group, a carboxyl group, a sulfonic acid group, a phosphoric acid group, a sulfinic acid group, a monosulfate ester group or an amino group. 
     
     
       13. The solid state imaging device according to  claim 9 , wherein the (A) pigment is selected from the group consisting of Pigment Green 36, Pigment Yellow 139, Pigment Yellow 150 and Pigment Yellow 185. 
     
     
       14. The solid state imaging device according to claim  9 , wherein (B) is a compound having a cyclic urea structure and having an acid group. 
     
     
       15. The solid state imaging device according to  claim 14 , wherein the acid group is selected from the group consisting of a carboxyl group, a sulfonic acid group and salts thereof. 
     
     
       16. The solid state imaging device according to  claim 9 , wherein the (B) compound having a cyclic urea structure and having an acid group or a basic group is represented by the following formula (III): 
       
         
           
           
               
               
           
         
       
       wherein R 1  and R 2  each represent a hydrogen atom; and R 4  and R 5  each represent a hydrogen atom, or an alkyl group, an aryl group, an alkenyl group or an alkynyl group, wherein each of R 4  and R 5  may further have a substituent selected from the group consisting of an alkyl group, an aryl group, an alkenyl group, an alkynyl group, a cyclic alkyl group, a cyclic alkenyl group, a cyclic alkynyl group, a hydroxyl group, a thiol group, an ether group, a thioether group, a sulfo group, a sulfonamide group, a carbonyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a thiocarbonyl group, a urea group, a urethane group, an amide group, and a heterocyclic group, wherein R 4  or R 5  contains an acid group or a basic group.